IC301 Troubleshooting
Check the power supplying IC301 Pin 17, 46, 72, 90?
NO
Refer to ?Power Circuit Troubleshooting?YES
Check the P-SENS ?High? of IC301 pin 26
Check the P-SENSNO
YES
Check the oscillation of X301
Replace the X301NO
YES
When power supplying to IC301 pin11.
(Low ž High)
Check the RESET circuitNO
YES
Replace the IC301
IC400 Troubleshooting
Check the power supplying to IC400 pin24
NO
Refer to ?Power Circuit Troubleshooting?
YES
Check the CLK Data of IC400 pin 21, 22
NOCheck the Data of IC301 Pin 9, 10
YES(CD ž TAPE FUNCTION)
Check the CONTROLL functionRefer to ?IC301
Troubleshooting?NO
Replace the Check the pattern
YESIC400of (IC301 & IC400)
END
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ACEC
